Make sure they are searchable, and favor more recent notes over older notes. In most cases, make sure each note are self-contained and can be reviewed without

Make sure they are searchable, and favor more recent notes over older notes. In most cases, make sure each note are self-contained and can be reviewed without the original text or other notes. Referencing is okay, but usually, you don't want to keep an idea contained in a million places. If needed, add a diagram or tree or nested tags to show where each note fits in the scheme of a grander picture on a topic. Looking for a set of notes in a helpful sequence is usually not going to be as effective, aside from chronologic notes of what happened in what sequence.